What must be provided in multiple tenant buildings with a master meter?

In multiple tenant buildings that utilize a master meter, the installation of individual shutoff valves for each tenant is essential for ensuring safety and proper maintenance. Individual shutoff valves allow each tenant to control the gas supply to their specific unit, providing them with the ability to turn off the gas in emergencies, perform maintenance, or address issues within their own space without affecting the entire building. This feature enhances tenant safety and ensures compliance with safety regulations as it improves the overall gas system's accessibility and responsiveness.

The necessity for individual shutoff valves also prevents potential hazards that could arise from relying solely on a central shutoff system. For example, if there were ever a leak or emergency situation, it would be much more effective for each tenant to have control over their own gas supply rather than having to rely on a centralized solution that might not be immediately accessible.

In contrast, while other options like access panels or centralized shutoff valves serve important functions, they do not provide the same level of individual control and safety for tenants in multiple tenant buildings that individual shutoff valves do.